Sift

My question is about the verb “to sift”.
I know that I can sift flour, cocoa powder and all sorts of solid cooking ingredients.
My question is: Can I sift liquids?
Let’s say I make some homemade orange juice and want to take the pulp out of it. Do I sift my juice? If I don’t, what do I do to it?
Help me! : )

Similarly, the internet allows the uninformed and lazy to wander in. For the not-too-lazy my google shows that many educated writers in English have used "sift the juice". But, if it's all too much for you, don't strain yourself.

I Do Not Sift Juice! I Will Not Sift Juice! I Have Never Sifted Juice! :-)

You can filter the pulp out. You could possibly strain, but that is reserved for cases when you start with a thicker mash. If you started with a thick mash of crushed tomato or pineapple, you would strain out the juice.